Migrating a physical cPanel machine to virtual cPanel machine

I am wanting to migrate a server that is now a physical server to a virtual server. Today I have over 200 users/domains registered on this server. That server works hosting, email, ftp, etc..

1) What are the recommended tools and what should I watch to perform this migration?
2) The new server is virtualized on VMware, is there any specific configuration for it?
3) Being over 200 accounts, with a database of 80GB in size, which estimated time for this migration?

3) Depends on cpu / disk io of the old server doing the account backup/packaging, the file transfer speed sending the .tar.gz file from old server to new server, and cpu /disk io of new server doing the unarchive and account restore.

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